Historical clue formulations

• Features of smartphones — 2019-06-28
• Snapping things — 2014-03-09
• Kodak, Pentax and Nikon — 2007-12-17
• Kodaks, e.g. — 2005-12-12
• Features of some cell phones — 2005-03-09
• Set equipment — 2004-09-04
• Shooters' needs — 2001-02-28
• Flash producers — 1999-01-16
• Kodaks, e.g. — 1997-06-02